An intelligent prefabricated beam curing method and system

Abstract

The application provides a kind of intelligent precast beam curing method and system thereof, the intelligent precast beam curing method includes: in steps S4, S5 and S6, by monitoring the temperature and humidity in the curing kiln, and feedback information, according to the change of temperature and humidity in the curing kiln, the start-stop of hot water atomization module in the curing kiln is controlled, the control of temperature and humidity in the curing kiln is realized, and the temperature and humidity in the curing kiln is guaranteed to present uniform speed temperature change of temperature change-warm temperature-uniform speed cooling. The actual temperature and humidity data in the curing kiln are collected by the information collection module through the control module, and the hot water atomization module is started according to the actual temperature and humidity data, and the temperature and humidity in the curing kiln are timely controlled, the control module records the temperature and humidity in the curing kiln in time during the curing process, guarantees the quality of the curing kiln, and the problem of the precast beam in the curing kiln can be traced, which is beneficial to the analysis and summary of the reason of damaged precast beam, and improves the curing efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated beam curing, and in particular relates to an intelligent prefabricated beam curing method and system. Background Art

[0002] With the rapid development of transportation roads and bridge infrastructure, higher requirements are being placed on the quality and quantity of precast beams. Traditional spray curing methods mainly use manual watering or a simple combination of time relays and switch components for spray control. Due to the influence of the operator's sense of responsibility and work attitude, this method often leads to untimely curing or missed curing, which makes the concrete surface prone to cracks and causes "common problems" such as insufficient strength. In addition, this method also has problems such as low mechanization, slow project progress, and high energy consumption. Due to the lack of molding specifications for the spray curing process and incomplete process information records at this stage, the precast beams with problems have no rules to follow, posing a huge safety hazard to infrastructure construction. To this end, we propose an intelligent precast beam curing method and system to solve the above problems. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, the present invention provides an intelligent prefabricated beam curing method and system, which adopts an intelligent curing method of solar energy + air energy + curing room temperature and humidity control, thereby mastering a scientific and reasonable curing process.

[0004] One embodiment of the present invention provides an intelligent prefabricated beam curing method, comprising:

[0005] Step S1: setting preset values ​​of temperature and humidity in the curing kiln according to the curing requirements of the precast beam;

[0006] Step S2: monitoring the temperature and humidity inside the curing kiln and the temperature outside the curing kiln;

[0007] Step S3: hydrating the prefabricated beams and placing the prefabricated beams into a curing kiln;

[0008] Step S4: spraying hot water mist into the curing kiln to control the temperature in the curing kiln to rise uniformly, so that the precast beam is initially shaped;

[0009] Step S5: maintaining a constant temperature in the curing kiln and a certain humidity to further shape the prefabricated beam;

[0010] Step S6: After the prefabricated beam is finalized, the indoor and outdoor temperatures and indoor humidity are collected again to control the temperature in the curing kiln so that the temperature in the curing kiln drops uniformly to a value within the range of ±5°C of the outdoor ambient temperature;

[0011] Step S7: After standing for a preset time, the prefabricated beam is taken out.

[0012] In one of the embodiments, in steps S4, S5 and S6, the temperature and humidity in the curing kiln are monitored, and the feedback information is used to control the start and stop of the hot water atomization module in the curing kiln according to the changes in the temperature and humidity in the curing kiln, thereby achieving the control of the temperature and humidity in the curing kiln and ensuring that the temperature and humidity in the curing kiln change from uniform heating to constant temperature to uniform cooling.

[0013] In one embodiment, the control of the temperature and humidity in the curing kiln includes the following steps:

[0014] Step S801: The cold water is heated by the hot water atomization module to a fixed temperature, wherein the fixed temperature is higher than a preset value, and the heated hot water is delivered to the mixing tank;

[0015] Step S802: The sensor monitors the temperature of the water in the mixing tank and adjusts the temperature by adding cold water and hot water to reach the preset temperature and humidity values;

[0016] Step S803: spraying the adjusted warm water into the curing kiln through the nozzle to ensure that the temperature and humidity in the curing kiln reach the preset values.

[0017] In one embodiment,

[0018] In step S2, the temperature and humidity inside the curing kiln are monitored by a temperature and humidity sensor, and the ambient temperature outside the curing kiln is monitored by a thermometer.

[0019] In one embodiment, in step S3, when the precast beam is transferred to the curing kiln, the temperature of the precast beam body is between 40°C and 80°C.

[0020] In one embodiment, in steps S4 and S6, the rate of uniform temperature increase in the curing kiln is k 升 The temperature in the curing kiln drops at a uniform rate of k 降 ;

[0021] k 升 The value range is between 8℃ / h and 10℃ / h;

[0022] |k 降 The absolute value range of | is also between 8℃ / h and 10℃ / h.

[0023] In one embodiment, in steps S4 and S6, k 升 The value range of |k is between 8℃ / h and 10℃ / h. 降The absolute value of | is also between 8℃ / h and 10℃ / h, so that the temperature in the curing kiln rises uniformly to between 55℃ and 65℃, or drops uniformly. The temperature in the curing kiln is the standard temperature, and the temperature difference between the warm water mist and the precast beam body is between -5℃±20℃.

[0024] In one embodiment, in step S5, the constant temperature in the curing kiln is between 55° C. and 65° C., and the ambient humidity is between 85% and 95%.

[0025] One embodiment of the present invention further provides an intelligent precast beam curing system, which is used to execute the intelligent precast beam curing method as described in any of the above embodiments, including:

[0026] Health kiln;

[0027] The control module is used to monitor the actual temperature and humidity data in the curing kiln and make adjustments;

[0028] The information collection module is used to collect the actual temperature and humidity data in the curing kiln, the outdoor temperature, and the surface temperature data of the precast beam, and feed the collected data back to the control module;

[0029] Hot water atomization module, the control module monitors and timely adjusts the water temperature in the hot water atomization module based on the actual temperature and humidity data fed back by the information acquisition module. The hot water is adjusted to a preset value through the hot water atomization module and then atomized to change the temperature and humidity in the curing kiln, as well as the surface temperature of the prefabricated beam, to ensure that the temperature and humidity in the curing kiln show a temperature change of uniform heating-constant temperature-uniform cooling.

[0030] In one embodiment, a heating component is provided on the floor or in the wall of the curing kiln, and a cooling fan is installed inside the curing kiln.

[0031] In one embodiment, the control module includes:

[0032] touchscreen;

[0033] The controller is connected to the touch screen and is used to receive data collected by the information collection module on the temperature and humidity in the curing kiln, the surface temperature of the prefabricated beam, and the hot water temperature in the hot water atomization module, and to control the hot water atomization module.

[0034] In one embodiment, the controller includes:

[0035] The A / D unit is used to receive the actual temperature and humidity data in the curing kiln, the outdoor temperature data, and the surface temperature of the precast beam collected by the information collection module, and feed the collected data back to the touch screen for display;

[0036] The I / O unit, based on the data collected by the A / D unit and the instructions generated by manual touch of the touch screen, outputs signals to control the start and stop of the hot water atomization module, thereby adjusting the temperature and humidity in the curing kiln;

[0037] The communication unit has a built-in GPRS wireless module to ensure that the control module can perform remote data communication.

[0038] In one embodiment, the information collection module includes:

[0039] A temperature and humidity sensor is installed in the curing kiln to monitor the temperature and humidity in the curing kiln and transmit the detected actual temperature and humidity data to the A / D unit;

[0040] A thermometer is installed outside the curing kiln to monitor the ambient temperature and transmit the detected ambient temperature data to the A / D unit;

[0041] The temperature sensor is fixed on the surface of the prefabricated beam and is used to monitor the surface temperature of the prefabricated beam and transmit the detected temperature data to the A / D unit.

[0042] In one embodiment, the hot water atomization module includes:

[0043] A heating unit is used to heat the cold water to make the water temperature reach a fixed temperature;

[0044] The hot water in the heating unit is delivered to the water mixing unit, and the temperature of the hot water delivered by the heating unit is monitored by a controller, and cold water or hot water is added to adjust the temperature to reach a preset temperature;

[0045] The atomizing unit is used to spray the mixed warm water into the curing kiln.

[0046] In one embodiment, the heating unit comprises:

[0047] Solar energy, used to heat cold water;

[0048] Air source heat pump, used to reheat water in the solar to reach the preset temperature;

[0049] The heated hot water is delivered to the water mixing unit.

[0050] In one embodiment, the water mixing unit comprises:

[0051] A mixing tank is used to receive the hot water heated by the heating unit and mix the hot water and cold water in the mixing tank through a controller to reach a preset temperature;

[0052] The sensor is installed in the mixing tank and is used to monitor the water temperature in the mixing tank in real time and transmit the temperature data to the A / D unit.

[0053] In one embodiment, the mixing water tank is connected to a hot water pipe, a cold water pipe and a water supply pipe, and the hot water pipe, the cold water pipe and the water supply pipe are all provided with a switch assembly, and the switch assembly is controlled by an I / O unit. The hot water pipe is connected to the heating unit, and the water supply pipe is connected to the atomization unit. The heated water is transported to the atomization unit for atomization.

[0054] In one embodiment, the atomization unit comprises:

[0055] High-pressure spray host, used to pressurize the water output from the mixing tank and controlled by the I / O unit;

[0056] The nozzle is connected to the high-pressure spray host through a high-pressure pipe and is used to atomize water. The nozzle is installed in the curing kiln. By controlling the number of nozzles opened, the temperature and humidity in the curing kiln can also be controlled.

[0057] The precast beam curing method or precast beam curing system provided in the above embodiments has the following beneficial effects:

[0058] 1. The control module receives the actual temperature and humidity data in the curing kiln from the information collection module in real time, and controls the hot water atomization module according to the preset temperature and humidity values ​​in the curing kiln, thereby achieving timely control of the temperature and humidity in the curing kiln. During the curing process, the control module collects instantaneous data and records historical data on the temperature and humidity in the curing kiln, achieving precise control of the temperature and humidity inside the curing kiln, greatly improving the quality of the curing kiln. At the same time, when problems occur in precast beams, the temperature and humidity data in the curing kiln can also be analyzed, which is conducive to summarizing the causes of damage to precast beams, effectively reducing the probability of quality problems in the later curing process of precast beams, and improving the quality and efficiency of curing.

[0059] 2. During the curing process in the curing kiln, a regular temperature change of uniform heating-constant temperature-uniform cooling is adopted. Compared with the traditional curing method of using manual sprinkling or a simple combination of relays and switch components for spray control, it has higher controllability. Under the premise of ensuring the curing of prefabricated beams, it enhances the adaptability of prefabricated beams in the curing process and reduces the problems that may occur in the curing process of prefabricated beams.

[0060] 3. The heating unit can utilize air-source heat pumps, solar energy, or a combination of air-source heat pumps and solar energy. Solar energy significantly reduces energy consumption and pollutant generation compared to traditional electric or boiler heating. Air-source heat pumps also effectively conserve resources, and combined with solar energy, they can effectively address the issue of solar energy alone failing to achieve the desired heating value on cloudy or rainy days.

[0061] 4. A water mixing unit is provided to buffer the hot water in the solar module, thus preventing the hot water temperature in the solar module from being too high and affecting the quality of the precast beams. At the same time, the temperature of the water in the water mixing unit is monitored by a sensor to ensure that the temperature of the water mist after atomization by the atomization unit reaches the preset value during the curing process of the precast beams, thereby ensuring the temperature and humidity inside the curing kiln. The atomization unit converts the warm water from liquid to gas, increasing the humidity in the air and the temperature in the environment, achieving the purpose of heating and humidification. The humidification is uniform, which can evenly distribute the water vapor in the air. The humidification is fast and energy-saving, ensuring the temperature and humidity of the environment during the curing process of the precast beams. The control module monitors the heating unit, water mixing unit, and atomization unit, and timely adjusts the water temperature to enhance the controllability of the precast beam curing process, forming a fully automatic loop intelligent heating and humidification system to achieve precise control of temperature / humidity at different points.

[0062] 5. The control module uses the actual temperature and humidity data in the curing kiln fed back by the information acquisition module and the hot water atomization module to monitor and adjust the temperature and humidity changes in the curing kiln, ensuring that the temperature and humidity in the curing kiln follow a uniform heating-constant temperature-uniform cooling process, thereby enhancing the adaptability of the prefabricated beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0064] Figure 1 A schematic flow chart of an intelligent precast beam curing method according to one embodiment of the present invention;

[0065] Figure 2 for Figure 1 Schematic diagram of the flow of the temperature control in the curing kiln by the control module;

[0066] Figure 3 for Figure 2 Flow diagram of temperature and humidity control in the medium curing kiln;

[0067] Figure 4 The temperature in the curing kiln of the present invention changes with time during the heating, constant temperature and cooling processes;

[0068] Figure 5 This is a logic block diagram of the intelligent prefabricated beam curing method of the present invention;

[0069] Figure 6 A schematic diagram of a module of an intelligent precast beam curing system provided in accordance with another embodiment of the invention;

[0070] Figure 7 Schematic diagram of the internal structure of the curing kiln in the present invention;

[0071] Figure 8 for Figure 6 Schematic diagram of the structure of the control module;

[0072] Figure 9 for Figure 6 Schematic diagram of the structure of the heating unit;

[0073] Figure 10 for Figure 6 Schematic diagram of the structure of the water mixing unit;

[0074] Figure 11 for Figure 6 Schematic diagram of the structure of the atomization unit;

[0075] In the figure: 100, health kiln; 101, fan; 102, heating component;

[0076] 110, control module; 111, touch screen; 112, controller; 1121, A / D unit; 1122, I / O unit; 1123, communication unit;

[0077] 120. Information acquisition module; 121. Temperature and humidity sensor; 122. Thermometer; 123. Temperature sensor;

[0078] 130. Hot water atomization module; 131. Heating unit; 1311. Solar energy; 1312. Air source heat pump;

[0079] 132. Water mixing unit; 1321. Water mixing tank; 1322. Sensor; 1323. Hot water pipe; 1324. Cold water pipe; 1325. Water supply pipe;

[0080] 133. Atomizing unit; 1331. High-pressure spray main unit; 1332. Nozzle. DETAILED DESCRIPTION

[0081] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0082] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0083] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0084] Please refer to Figure 1 One embodiment of the present invention provides an intelligent prefabricated beam curing method, comprising:

[0085] Step S1: setting preset values ​​of temperature and humidity in the curing kiln 100 according to the curing requirements of the precast beams;

[0086] Step S2: monitoring the temperature and humidity inside the curing kiln 100 and the temperature outside the curing kiln 100;

[0087] Step S3: Hydrate the precast beam and place the precast beam into the curing kiln 100;

[0088] Step S4: spraying hot water mist into the curing kiln 100 to control the temperature in the curing kiln 100 to rise uniformly, so that the precast beam is initially shaped;

[0089] Step S5: Keeping the temperature in the curing kiln 100 constant and maintaining a certain ambient humidity to further shape the precast beam;

[0090] Step S6: After the precast beam is finalized, the indoor and outdoor temperatures and indoor humidity are collected again to control the temperature in the curing kiln 100 so that the temperature in the curing kiln 100 decreases uniformly to a value within the range of ±5°C of the outdoor ambient temperature;

[0091] Step S7: After standing for a preset time, the prefabricated beam is taken out.

[0092] In the intelligent precast beam curing method provided in the above embodiment, by presetting the preset values ​​of temperature and humidity in the curing kiln 100, and receiving the actual temperature and humidity data in the curing kiln 100 in real time through the control module 110, the information collection module 120 collects the actual temperature and humidity data in the curing kiln 100, and starts the hot water atomization module 130 according to the actual temperature and humidity data, so as to timely control the temperature and humidity in the curing kiln 100. The control module 110 records the temperature and humidity in the curing kiln 100 in a timely manner during the curing process, thereby enhancing the control of the temperature and humidity inside the curing kiln 100, ensuring the quality of the curing kiln 100, and making it possible to trace the problematic precast beams in the curing kiln 100, which is conducive to analyzing and summarizing the causes of damaged precast beams, reducing quality problems of precast beams in the curing process, and improving curing efficiency;

[0093] At the same time, the temperature and humidity inside the precast beam are controlled by the control module 110. During the curing process of the curing kiln 100, a uniform heating-constant temperature-uniform cooling process is adopted, with regular temperature changes. Compared with the traditional curing method using manual sprinkling or a simple combined spray control method of relays and switch components, the controllability is higher. Under the premise of ensuring the curing of the precast beam, the adaptability of the precast beam in the curing process is enhanced, and problems that may occur in the curing process of the precast beam are reduced;

[0094] According to the principle of concrete coagulation and hardening, moist heat curing is divided into four stages: static stop (i.e., step S3 performs outdoor pre-curing of precast beams), heating (i.e., step S4 controls the temperature in the curing kiln 100 to rise uniformly), constant temperature (i.e., step S5 maintains a constant ambient temperature), and cooling (i.e., step S6 controls the temperature in the curing kiln 100 to drop uniformly to the outdoor temperature environment); in step S7, the preset time value range is 1-2 hours, and in step S1, the preset values ​​of the temperature and humidity in the curing kiln 100 are: temperature between 50°C and 65°C, and humidity between 90% and 98%.

[0095] Please refer to Figure 2 In one embodiment, in steps S4, S5 and S6, the temperature and humidity in the curing kiln 100 are monitored, and the feedback information is used to control the start and stop of the hot water atomization module 130 in the curing kiln 100 according to the changes in the temperature and humidity in the curing kiln 100, thereby achieving the control of the temperature and humidity in the curing kiln 100 and ensuring that the temperature and humidity in the curing kiln 100 show a temperature change of uniform heating-constant temperature-uniform cooling.

[0096] In this embodiment, the temperature and humidity in the curing kiln 100 are monitored in real time by the information acquisition module 120, and the data is fed back to the control module 110. The information acquisition module 120 ensures that the temperature and humidity in the curing kiln 100 always reach the preset values, thereby ensuring the quality of the prefabricated beams. The control unit monitors and adjusts the temperature of the water in the hot water atomization module 130 to ensure the temperature of the fine mist atomized by the nozzle, and ensures the temperature and humidity in the curing kiln 100. This improves the controllability of the temperature and humidity changes in the curing kiln 100 during the curing process of the prefabricated beams, thereby ensuring the quality of the curing of the prefabricated beams.

[0097] Please refer to Figure 3 In one embodiment, the control of the temperature and humidity in the curing kiln 100 includes the following steps:

[0098] Step S801: The hot water atomizing module 130 heats the cold water to a fixed temperature, wherein the fixed temperature is higher than a preset value, and the heated hot water is delivered to the mixing water tank 1321;

[0099] Step S802: The sensor 1322 monitors the temperature of the water in the mixing tank 1321 and adjusts the temperature by adding cold water and hot water to reach the preset temperature and humidity values;

[0100] Step S803: spraying the adjusted warm water into the curing kiln 100 through the nozzle to ensure that the temperature and humidity in the curing kiln 100 reach the preset values.

[0101] In this embodiment, the temperature and humidity in the curing kiln 100 are monitored in real time by the information acquisition module 120, and the data is fed back to the control module 110. The information acquisition module 120 ensures that the temperature and humidity in the curing kiln 100 always reach the preset value, thereby ensuring the quality of the prefabricated beam. The control unit monitors and adjusts the temperature of the water in the hot water atomization module 130 to ensure the temperature of the micro-mist atomized by the nozzle, thereby ensuring the temperature and humidity in the curing kiln 100, increasing the temperature, and achieving the purpose of heating and humidification. The humidification is uniform, which can make the water vapor evenly distributed in the air. The humidification is fast and the energy saving effect is good. The external temperature and humidity sensor 121 constitutes a fully automatic loop intelligent heating and humidification system, which realizes precise control of temperature / humidity at different points, and the high-pressure residual water return technology cooperates with the nozzle 1332 to ensure that there is no dripping and uniform atomization when the system is in operation or shutdown state, thereby ensuring the temperature and humidity of the environment during the curing process of the prefabricated beam, and can be timely adjusted according to the ambient temperature to ensure the quality of the prefabricated beam.

[0102] In one embodiment,

[0103] In step S2 , the temperature and humidity inside the curing kiln 100 are monitored by the temperature and humidity sensor 121 , and the ambient temperature outside the curing kiln 100 is monitored by the thermometer 122 .

[0104] In this embodiment, the temperature inside the curing kiln 100 is monitored in real time by the temperature and humidity sensor 121 to ensure the curing environment of the precast beams and avoid excessive temperature changes that affect the quality of the precast beams.

[0105] In one embodiment, in step S3, when the precast beam is transferred to the curing kiln 100, the temperature of the precast beam body is between 40°C and 80°C.

[0106] In this embodiment, before the precast beams are sent into the curing kiln 100, the concrete can be hydrated to a certain extent and initially formed to resist the swelling effect that occurs during the temperature rise period. When entering the curing kiln 100 for curing, the precast beams have not reached the initial structural strength, and the temperature rise can easily cause their structure to be damaged. At the end of curing, residual deformation is formed, which damages the performance of the concrete.

[0107] In one embodiment, in steps S4 and S6, the temperature in the curing kiln 100 is uniformly increased at a rate k. 升 The temperature in the curing kiln 100 is uniformly cooled at a rate of k 降 ;

[0108] k 升 The value range is between 8℃ / h and 10℃ / h;

[0109] |k 降 The absolute value range of | is also between 8℃ / h and 10℃ / h.

[0110] In steps S4 and S6, k 升 The value range of |k is between 8℃ / h and 10℃ / h. 降 The absolute value of the value range of | is also between 8°C / h and 10°C / h, so that the temperature in the curing kiln 100 is uniformly increased to between 55°C and 65°C, or the temperature in the curing kiln 100 is uniformly decreased. The temperature in the curing kiln 100 is the standard temperature, and the temperature difference between the warm water mist and the precast beam body is between -5°C±20°C.

[0111] In this embodiment, k 升 and|k 降 The value range of | is between 8°C / h and 10°C / h. The maximum value of the uniform temperature rise is set. The control module 110 adjusts the water temperature of the mixing tank 1321 in the hot water atomization module 130 according to the beam body temperature and the outdoor ambient temperature to avoid excessive temperature rise that may cause quality problems in the prefabricated beam;

[0112] Taking the local outdoor ambient temperature as the standard, the temperature is raised uniformly to 55℃~65℃, with a heating rate of 8℃ / h~10℃ / h. When the outdoor ambient temperature is lower than 30℃, the heating time is appropriately extended, and the humidity in the curing kiln 100 needs to be steadily increased to 95% during the heating process;

[0113] During the heating process, the control module 110 adjusts the water temperature of the water tank in the hot water atomizing module 130 according to the temperature of the beam body and the outdoor ambient temperature. The temperature is increased by the temperature of the atomized gas generated by the atomized spraying of water in the hot water atomizing module 130. At the same time, a PID algorithm is used to accurately control the heating rate to ensure that the precast beam can better adapt to the temperature in the curing kiln 100 during the temperature rising process, thereby avoiding quality problems of the precast beam caused by excessive temperature rise.

[0114] During the cooling process, the control module 110 uses an automatic PID algorithm to accurately adjust the temperature according to the beam body temperature, ensuring that the precast beam can better adapt to the temperature in the curing kiln 100 during the temperature drop process, preventing the precast beam body temperature from changing drastically and causing damage to the beam body.

[0115] In one embodiment, in step S5, the constant temperature in the curing kiln 100 is between 55° C. and 65° C., and the ambient humidity is between 85% and 95%.

[0116] In this embodiment, the constant temperature time is expected to be 8 hours, the constant temperature must be between 55°C and 65°C, and the ambient humidity must be stably maintained between 85-95%. During the constant temperature process, the control module 110 adjusts the water temperature in the hot water atomization module 130 according to the beam body temperature, the temperature and humidity in the curing kiln 100, and adopts automatic feedback to adjust the hot water atomization module 130. The mist volume of the atomized gas generated by the atomized spraying of water in the hot water atomization module 130 is automatically adjusted by the PID algorithm to accurately adjust the temperature and humidity values. The control module 110 monitors the ambient temperature and humidity in the curing kiln 100 in real time to ensure constant temperature and humidity in the curing kiln 100, and to ensure that the prefabricated beams in the curing kiln 100 are cured in a constant temperature and humidity environment, so as to avoid changes in temperature and humidity or untimely regulation affecting the quality of the prefabricated beams.

[0117] Please refer to Figure 6 One embodiment of the present invention further provides an intelligent precast beam curing system for executing the intelligent precast beam curing method as described in any one of the above embodiments, comprising:

[0118] Health kiln 100;

[0119] The control module 110 is used to monitor the actual temperature and humidity data in the curing kiln 100 and make adjustments;

[0120] The information collection module 120 is used to collect the actual temperature and humidity data in the curing kiln 100, the outdoor temperature, and the surface temperature data of the precast beam, and feed the collected data back to the control module 110;

[0121] The hot water atomization module 130, the control module 110 monitors and timely adjusts the water temperature in the hot water atomization module 130 based on the actual temperature and humidity data fed back by the information acquisition module 120, and the hot water is adjusted to a preset value through the hot water atomization module 130 and then atomized to change the temperature and humidity in the curing kiln 100, as well as the surface temperature of the prefabricated beam, to ensure that the temperature and humidity in the curing kiln 100 show a temperature change of uniform heating-constant temperature-uniform cooling.

[0122] In this embodiment, the temperature and humidity in the curing kiln 100 are monitored in real time by the information acquisition module 120, and the collected information is transmitted to the control module 110 for regulation. The control module 110 monitors and timely adjusts the water temperature in the hot water atomization module 130 based on the collected data fed back by the information acquisition module 120. The control module 110 receives the temperature information in the curing kiln 100 and records it in time, thereby enhancing the control over the temperature and humidity inside the curing kiln 100, ensuring the quality of the prefabricated beams, and ensuring that there are traces of problematic prefabricated beams in the curing kiln 100, which is conducive to analyzing and summarizing the causes of damage to the prefabricated beams, reducing quality problems of the prefabricated beams during the curing process, and improving the curing efficiency.

[0123] Please refer to Figure 7 In one embodiment, a heating component 102 is provided on the floor or in the wall of the curing kiln 100 , and a cooling fan 101 is installed inside the curing kiln 100 .

[0124] Preferably, the heating component 102 may also include hot water pipes and radiators.

[0125] In this embodiment, the hot water pipe 102 is connected to the mixing tank 1321 in the hot water atomization module 130 through a pipe. A switch assembly is provided on the pipe, and the switch assembly is controlled by the I / O unit 1122. By setting the hot water pipe 102 in the curing kiln 100, the temperature uniformity in the curing kiln 100 is effectively guaranteed, and the heat loss in the hot gas atomization process is reduced. By setting the fan 101, the fluidity of the air in the curing kiln 100 is accelerated, and the uniformity of the atomized hot gas in the curing kiln 100 is guaranteed.

[0126] Please refer to Figure 8 In one embodiment, the control module 110 includes:

[0127] Touch screen 111;

[0128] A controller 112 is connected with the touch screen 111, and is used to receive the data of the temperature and humidity in the health preserving kiln 100, the surface temperature of the precast beam and the hot water temperature in the hot water atomization module 130 collected by the information collection module 120, and control the hot water atomization module 130.

[0129] Preferably, the controller 112 can include PLC, DCS, FCS or other embedded systems.

[0130] In the embodiment, the controller 112 is connected with the touch screen 111 through RS-232 signal, and the controller 112 performs data calculation through the information collected by the information collection module 120, automatically issues the spraying instruction, or manually issues the spraying instruction through the touch screen 111, so that the control of the switch assembly and the high-pressure spraying host 1331 can be quickly realized, and the constant temperature and humidity intelligent health preserving control purpose is achieved.

[0131] Please refer to Figure 8 In one embodiment, the controller 112 includes:

[0132] An A / D unit 1121 is used to receive the actual temperature and humidity data in the health preserving kiln 100, the outdoor temperature data and the surface temperature of the precast beam collected by the information collection module 120, and feed back the collected data to the touch screen 111 for display;

[0133] An I / O unit 1122 is used to output the signal to control the start and stop of the hot water atomization module 130 according to the data collected by the A / D unit 1121, and control the temperature and humidity in the health preserving kiln 100 according to the instruction generated by manually touching the touch screen 111;

[0134] A communication unit 1123 is built-in with a GPRS wireless module, and is used to ensure the remote data communication of the control module 110.

[0135] In the embodiment, the controller 112 collects the temperature and humidity in the health preserving kiln 100, the temperature outside the health preserving kiln 100 and the surface temperature of the precast beam through the A / D module, compares and judges the collected data with the preset spraying health preserving preset value, and then controls the switch assembly and the high-pressure spraying host 1331 to spray in the health preserving kiln 100.

[0136] Please refer to Figure 7 In one embodiment, the information collection module 120 includes:

[0137] A temperature and humidity sensor 121 is installed in the health preserving kiln 100, and is used to monitor the temperature and humidity in the health preserving kiln 100, and transmit the detected actual temperature and humidity data to the A / D unit 1121.

[0138] A thermometer 122 is installed outside the health preserving kiln 100 to monitor the ambient temperature and transmit the detected ambient temperature data to the A / D unit 1121.

[0139] A temperature sensor 123 is fixed on the surface of the precast beam to monitor the surface temperature of the precast beam and transmit the detected temperature data to the A / D unit 1121.

[0140] In the embodiment, the temperature and humidity sensor 121 is installed inside the health preserving kiln 100 to monitor the temperature and humidity in the health preserving kiln 100 in real time and feed back the actual temperature and humidity data to the A / D unit 1121, and the temperature sensor 123 monitors the temperature of the surface of the precast beam in real time and feeds back the data to the A / D unit 1121, so that the control module 110 can timely regulate the temperature and humidity in the health preserving kiln 100, thereby enhancing the controllability in the health preserving process of the precast beam.

[0141] Please refer to Figure 7 In one of the embodiments, the hot water atomization module 130 comprises:

[0142] A heating unit 131 is used to heat the cold water to a fixed temperature;

[0143] A water mixing unit 132, the hot water in the heating unit 131 is transmitted to the water mixing unit 132, the temperature of the hot water transmitted by the heating unit 131 is monitored by the controller 112, and cold water or hot water is added for adjustment to reach the preset temperature;

[0144] An atomization unit 133 is used to spray the mixed warm water into the health preserving kiln 100.

[0145] In the embodiment, the heating unit 131 is composed of an air source heat pump 1312 and a solar energy 1311. Through the combination of the air source heat pump 1312 and the solar energy 1311, the air source heat pump 1312 avoids the situation that the water temperature cannot reach the preset value due to insufficient sunshine time on cloudy or rainy days. The water mixing unit 132 plays a certain buffering role on the hot water in the solar energy 1311 module, so as to avoid the situation that the hot water temperature in the solar energy 1311 module is too high to affect the quality of the precast beam. At the same time, the sensor 1322 monitors the temperature of the water in the water mixing unit 132, so as to ensure that the temperature of the water mist after atomization of the atomization unit 133 reaches the preset value in the precast beam curing process, so as to ensure the temperature and humidity inside the curing kiln 100. The atomization unit 133 changes the hot water from liquid state to gaseous state, so as to increase the humidity in the air and increase the temperature in the environment, so as to achieve the purpose of heating and humidifying. The humidification is uniform, the water vapor can be uniformly distributed in the air, the humidification is fast, the energy saving effect is good, the temperature and humidity of the environment in the curing process of the precast beam are ensured, the control module 110 monitors the heating unit 131, the water mixing unit 132 and the atomization unit 133, and timely adjusts and controls the water temperature, so as to enhance the controllability of the precast beam curing process. An automatic loop intelligent heating and humidifying system is formed, precise control of different point temperature / humidity is realized, the heating unit 131 heats the cold water to a fixed temperature, the fixed temperature should be higher than the preset value, that is, the fixed temperature should be higher than 65℃, so as to avoid the situation that heat loss occurs in the conveying process of the hot water, and the temperature of the hot water decreases.

[0146] Please refer to Figure 9 In one embodiment, the heating unit 131 comprises:

[0147] The solar energy 1311 is used for heating the cold water.

[0148] The air source heat pump 1312 is used for secondarily heating the water in the solar energy 1311 to reach the preset temperature.

[0149] The heated hot water is conveyed into the water mixing unit 132.

[0150] In the embodiment, through the combination of the air source heat pump 1312 and the solar energy 1311, the air source heat pump 1312 avoids the situation that the water temperature cannot reach the preset value due to insufficient sunshine time on cloudy or rainy days.

[0151] Please refer to Figure 10 In one embodiment, the water mixing unit 132 comprises:

[0152] The water mixing tank 1321 is used for receiving the hot water heated by the heating unit 131, and the controller 112 mixes the hot water and the cold water in the water mixing tank 1321 to reach the preset temperature.

[0153] The sensor 1322 is installed in the mixing tank 1321 and is used to monitor the water temperature in the mixing tank 1321 in real time and transmit the temperature data to the A / D unit 1121.

[0154] The mixing water tank 1321 is connected to a hot water pipe 1323, a cold water pipe 1324 and a water supply pipe 1325. The hot water pipe 1323, the cold water pipe 1324 and the water supply pipe 1325 are all provided with a switch assembly, which is controlled by the I / O unit 1122. The hot water pipe 1323 is connected to the heating unit 131, and the water supply pipe 1325 is connected to the atomization unit 133. The heated water is transported to the atomization unit 133 for atomization.

[0155] The mixing tank 1321 plays a certain role in buffering the hot water in the solar module 1311, thereby preventing the hot water in the solar module 1311 from being too hot and affecting the quality of the precast beam. At the same time, the sensor 1322 monitors the temperature of the water in the mixing tank 1321 to ensure that the temperature of the water mist after atomization by the atomization unit 133 reaches the preset value during the curing process of the precast beam, thereby ensuring the temperature and humidity inside the curing kiln 100.

[0156] The hot water pipe 1323 is connected to the heating unit 131, the water supply pipe 1325 is connected to the high-pressure spray host 1331, and the mixing tank 1321 mixes cold water and warm water. The mixing tank 1321 plays a certain buffering role on the hot water in the solar energy module 1311, so as to prevent the hot water temperature in the heating unit 131 from being too high or too low and affecting the quality of the prefabricated beam. At the same time, the temperature of the water in the mixing tank 1321 is monitored by the sensor 1322 to ensure the temperature of the water mist after atomization, so as to reach the preset value during the curing process of the prefabricated beam, thereby ensuring the temperature and humidity inside the curing kiln 100.

[0157] Preferably, the switch assembly is most preferably a solenoid valve, and may also include a switch or a valve;

[0158] Please refer to Figure 11 In one embodiment, the atomization unit 133 includes:

[0159] The high-pressure spray host 1331 is used to pressurize the water output from the mixing tank 1321 and is controlled by the I / O unit 1122;

[0160] The nozzle 1332 is connected to the high-pressure spray host 1331 through a high-pressure pipe and is used to atomize water. The nozzle 1332 is installed in the curing kiln 100. By controlling the number of nozzles 1332 opened, the temperature and humidity in the curing kiln 100 can also be controlled.

[0161] In this embodiment, there are several nozzles 1332, and all of them are installed inside the curing kiln 100. The high-pressure spray host 1331 pressurizes the purified warm water to more than 4 MPa, and atomizes the high-pressure warm water through a high-pressure pipe. The nozzle 1332 atomizes the water into countless fine mists with a diameter of 10 to 50 microns, floating in the air. The warm water changes from liquid to gas, which increases the humidity in the air and the temperature in the environment, achieving the purpose of heating and humidification. The humidification is uniform, which can make the water vapor evenly distributed in the air. The humidification is faster and the energy-saving effect is good. By setting two temperature control methods: 1. Control the number of nozzles 1332 opened; 2. Control the temperature of the warm water in the mixing tank 1321, and enhance the regulation of the temperature in the curing kiln 100.

[0162] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. Intelligent prefabricated beam curing method, characterized in that: include: Step S1: setting preset values ​​of temperature and humidity in the curing kiln according to the curing requirements of the precast beam; Step S2: monitoring the temperature and humidity inside the curing kiln and the temperature outside the curing kiln; Step S3: Hydrate the precast beam and place it in a curing kiln. When the precast beam is transferred to the curing kiln, the temperature of the precast beam is between 40°C and 80°C. Step S4: spraying hot water mist into the curing kiln, controlling the temperature inside the curing kiln to rise uniformly at a rate of 8°C / h-10°C / h, thereby preliminarily shaping the precast beams; wherein, a combination of solar energy and an air source heat pump is used to heat the cold water, which is then transported to a mixing tank where the hot water is buffered and its temperature is regulated. A sensor monitors the water temperature in the mixing tank in real time and feeds it back to the A / D unit. A controller controls the mixing of the cold and hot water based on the feedback to ensure that the water temperature reaches a preset value, and then sprays the regulated warm water into the curing kiln through a nozzle; Step S5: The temperature in the curing kiln is kept constant at 55°C to 65°C, and the ambient humidity is maintained between 85% and 95% to further shape the precast beam; Step S6: After the precast beam is finalized, the indoor and outdoor temperatures and indoor humidity are collected again, and the temperature in the curing kiln is controlled to decrease uniformly at a rate of 8°C / h - 10°C / h to a value within the outdoor ambient temperature ±5°C, wherein the temperature difference between the warm water mist and the precast beam body is between -5°C ± 20°C; wherein the actual temperature and humidity data in the curing kiln, the outdoor temperature data, and the precast beam surface temperature data are obtained, and the temperature and humidity in the curing kiln are timely adjusted based on this data. The temperature and humidity data during the curing process are instantaneously collected and historically recorded to facilitate cause analysis and summary when problems with the precast beam occur; Step S7: After standing for a preset time, the prefabricated beam is taken out.

2. The intelligent prefabricated beam curing method according to claim 1, characterized in that: In steps S4, S5 and S6, the temperature and humidity in the curing kiln are monitored and information is fed back. The start and stop of the hot water atomization module in the curing kiln is controlled according to the changes in the temperature and humidity in the curing kiln, so as to control the temperature and humidity in the curing kiln and ensure that the temperature in the curing kiln changes from uniform heating to constant temperature to uniform cooling.

3. The intelligent prefabricated beam curing method according to claim 2, characterized in that: The control of the temperature and humidity in the curing kiln comprises the following steps: Step S801: The cold water is heated by the hot water atomization module to a fixed temperature, wherein the fixed temperature is higher than a preset value, and the heated hot water is delivered to the mixing tank; Step S802: The sensor monitors the temperature of the water in the mixing tank and adjusts the temperature by adding cold water and hot water to reach the preset temperature and humidity values; Step S803: spraying the adjusted warm water into the curing kiln through the nozzle to ensure that the temperature and humidity in the curing kiln reach the preset values.

4. The intelligent prefabricated beam curing method according to claim 1, characterized in that: In step S2, the temperature and humidity inside the curing kiln are monitored by a temperature and humidity sensor, and the ambient temperature outside the curing kiln is monitored by a thermometer.

5. An intelligent precast beam curing system, configured to execute the intelligent precast beam curing method according to any one of claims 1 to 4, characterized in that: include: Health kiln; The control module is used to monitor the actual temperature and humidity data in the curing kiln and make adjustments; The control module includes: a touch screen; a controller connected to the touch screen, the controller is used to receive data collected by the information collection module on temperature and humidity in the curing kiln, surface temperature of the precast beam, and hot water temperature in the hot water atomization module, and control the hot water atomization module; the hot water atomization module includes: The heating unit is used to heat the cold water to a fixed temperature. The heating unit includes: solar energy for heating the cold water; an air source heat pump for secondary heating the water in the solar energy to reach a preset temperature; the heated hot water is transported to the water mixing unit; a water mixing unit, wherein the hot water in the heating unit is transported to the water mixing unit, the temperature of the hot water transported by the heating unit is monitored by a controller, and cold water or hot water is added to adjust the temperature to reach a preset temperature; the water mixing unit comprises: a water mixing tank, wherein the water mixing tank is used to receive the hot water heated by the heating unit, and the hot water and cold water in the water mixing tank are mixed by the controller to reach a preset temperature; a sensor, wherein the sensor is installed in the water mixing tank, and is used to monitor the water temperature in the water mixing tank in real time and transmit the temperature data to the A / D unit; Atomizing unit, used to spray the mixed warm water into the curing kiln; The information collection module is used to collect the actual temperature and humidity data in the curing kiln, the outdoor temperature, and the surface temperature data of the precast beam, and feed the collected data back to the control module; Hot water atomization module: The control module monitors and timely adjusts the water temperature in the hot water atomization module based on the actual temperature and humidity data fed back by the information acquisition module. The hot water is adjusted to a preset value through the hot water atomization module and then atomized to change the temperature and humidity in the curing kiln, as well as the surface temperature of the prefabricated beam, to ensure that the temperature in the curing kiln changes from uniform heating to constant temperature to uniform cooling.

6. The intelligent precast beam curing system according to claim 5, characterized in that: A heating component is provided on the floor or in the wall of the curing kiln, and a heat dissipation fan is installed inside the curing kiln.

7. The intelligent precast beam curing system according to claim 5, characterized in that: The controller includes: The A / D unit is used to receive the actual temperature and humidity data in the curing kiln, the outdoor temperature data, and the surface temperature of the precast beam collected by the information collection module, and feed the collected data back to the touch screen for display; The I / O unit, based on the data collected by the A / D unit and the instructions generated by manual touch of the touch screen, outputs signals to control the start and stop of the hot water atomization module, thereby adjusting the temperature and humidity in the curing kiln; The communication unit has a built-in GPRS wireless module to ensure that the control module can perform remote data communication.

8. The intelligent precast beam curing system according to claim 7, characterized in that: The information collection module includes: A temperature and humidity sensor is installed in the curing kiln to monitor the temperature and humidity in the curing kiln and transmit the detected actual temperature and humidity data to the A / D unit; A thermometer is installed outside the curing kiln to monitor the ambient temperature and transmit the detected ambient temperature data to the A / D unit; The temperature sensor is fixed on the surface of the prefabricated beam and is used to monitor the surface temperature of the prefabricated beam and transmit the detected temperature data to the A / D unit.

9. The intelligent precast beam curing system according to claim 5, characterized in that: The mixing tank is connected to a hot water pipe, a cold water pipe and a water supply pipe. The hot water pipe, the cold water pipe and the water supply pipe are all provided with a switch assembly, which is controlled by an I / O unit. The hot water pipe is connected to the heating unit, and the water supply pipe is connected to the atomization unit. The heated water is transported to the atomization unit for atomization.

10. The intelligent precast beam curing system according to claim 7, characterized in that: The atomization unit comprises: High-pressure spray host, used to pressurize the water output from the mixing tank and controlled by the I / O unit; The nozzle is connected to the high-pressure spray host through a high-pressure pipe and is used to atomize water. The nozzle is installed in the curing kiln. By controlling the number of nozzles opened, the temperature and humidity in the curing kiln can also be controlled.

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